Ultrafast photoinduced melting of orbital order inLaVO3 | Zendy

Shinichi Tomimoto | Zendy; S. Miyasaka | Zendy; Takeshi Ogasawara | Zendy; Hiroshi Okamoto | Zendy; Y. Tokura | Zendy

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Ultrafast photoinduced melting of orbital order inLaVO3

Author(s) -

Shinichi Tomimoto,

S. Miyasaka,

Takeshi Ogasawara,

Hiroshi Okamoto,

Y. Tokura

Publication year - 2003

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.68.035106

Subject(s) - photoexcitation , femtosecond , physics , spectroscopy , ultrashort pulse , materials science , order (exchange) , atomic physics , optics , excited state , laser , quantum mechanics , finance , economics

The photoinduced effect on the orbital-ordered phase in perovskite-type LaVO3 has been investigated by femtosecond time-resolved reflection spectroscopy. Large reflectivity change has been observed immediately after photoirradiation. The spectral shape and polarization dependence of the reflectivity change indicate the melting of the orbital order induced by photoexcitation. The photocarriers annihilate in about 200 fs, and the orbital order partially recovers owing to thermalization with the lattice in 2–4 ps

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